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LTC3803 Datasheet(PDF) 13 Page - Linear Technology

Part # LTC3803
Description  Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3803 Datasheet(HTML) 13 Page - Linear Technology

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LTC3803
13
3803fc
TYPICAL APPLICATIONS
4:1 Input Range 3.3V Output Isolated Flyback DC/DC Converter
3803 TA05
FDC2512
T1
PA1277NL
•
•
•
0.1μF
0.1μF
100μF
6.3V
× 3
0.33μF
2.2nF
47pF
100k
56k
22.1k
VIN
+
VIN
–
VCC
VCC
VOUT
+
VOUT
+
3.3V
3A
GND
VOUT
+
MMBTA42
PDZ6.8B
0.1μF
2.2μF
4.7k
680Ω
22Ω
6.8k
270Ω
1
1
2
3
6
5
4
2
BAS516
BAS516
PDS1040
10Ω
BAS516
PS2801-1
100k
68Ω
150pF
220k
0.040Ω
1
2
3
6
5
4
18V TO 72V
ITH/RUN
LTC3803
GND
GATE
SENSE
VCC
VFB
GND
BAS516
BAT760
LT4430
OC
VIN
COMP
FB
OPTO
Efficiency vs Load Current
IOUT (A)
0
70
72
74
76
78
80
82
84
12
3
4
3803 TA05a
VIN = 48V
VIN = 24V



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